Feature based CAD mesh model editing and optimizing algorithm

An optimization algorithm and volume grid technology, applied in image data processing, instruments, etc., can solve problems such as less research work, difficult to guarantee semantics and features, etc.
CN106204748AActive Publication Date: 2016-12-07SOUTH CHINA UNIV OF TECH
5 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2016-12-07

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a feature based CAD mesh model editing and optimizing algorithm, which comprises the CAD mesh model editing and the CAD tetrahedral mesh model optimizing, both based on features. In editing, a user can select a set of surface areas that need to maintain the shape features of the model, and edit the model by operating the areas through translating, rotating, and etc. In optimizing, according to the region of model change, firstly, the tetrahedral mesh units with poor quality are evaluated; corresponding topological optimization operations are carried out to these units and finally the mesh smoothing operation is carried out. The whole optimization process is iteratively carried out so as to obtain optimized mesh model data. The algorithm of the invention can directly edit and optimize a finite element mesh model, and can exactly retain the original features of the model, making it fully meet the application requirements of relevant industrial fields.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the fields of computer-aided design and finite element analysis, in particular to a feature-based editing and optimization algorithm of a CAD body grid model. Background technique

[0002] Computer-aided design technology (Computer-Aided Design, CAD) refers to the technology that uses computers as auxiliary tools to help designers in the engineering field design products. It can effectively accelerate the speed of product design analysis, improve manufacturing efficiency and precision, and improve economic benefits. With the help of computer-aided design technology, engineers and technicians can realize "paperless" operations, and use the help of computers to efficiently complete product analysis, design, drawing and manufacturing. Using computer-aided design technology, while saving resources and reducing design costs, it also greatly speeds up product design and improves product quality. The Boeing Company of the United Sta...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More